(0 20 18 17 16)(1 14 2 21 4)(3 7 5)(6 10 8)(9 13 11)(12 19 15)
ALLOWS (11/8)-SEQUENCE
1: (0 2 16)
(0)(1 14 2 20 18 17 16 21 4)(3 7 5)(6 10 8)(9 13 11)(12 19 15)
2: (4 16 21)
(0)(1 14 2 20 18 17 16)(3 7 5)(4)(6 10 8)(9 13 11)(12 19 15)(21)
3: (2 20 14)
(0)(1 14 18 17 16)(2)(3 7 5)(4)(6 10 8)(9 13 11)(12 19 15)(20)(21)
4: (12 19 15)
(0)(1 14 18 17 16)(2)(3 7 5)(4)(6 10 8)(9 13 11)(12)(15)(19)(20)(21)